USPTO Art Unit 3645 Prosecution Statistics

Art Unit Information

Art Unit: 3645
Group: 3640
Tech Center: 3600
Total Cases: 13,531
Last Active: February 2025

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19059957DUAL-BAND ANTENNA ARRAY WITH STACKED ROTMAN LENS FEED FOR BEAMFORMINGFebruary 2025May 2025Allow300NoNo
19102866FRACTURE CHARACTERIZATION WHILE DRILLINGFebruary 2025June 2025Allow400NoNo
19048248ACOUSTIC TRANSDUCER FOR TOWED SEISMIC PINGERFebruary 2025April 2025Allow200NoNo
18988779HIGH-PRECISION BEIDOU SATELLITE POSITIONING METHOD AND SYSTEM FOR COMPLEX URBAN ENVIRONMENTDecember 2024May 2025Allow510NoNo
18976245LIDAR RANGE AND SPEED MEASUREMENT METHOD AND LIDARDecember 2024February 2025Allow3300NoNo
18939876COAL ROCK INTERFACE DIRECTIONAL DETECTION DEVICE AND METHOD BASED ON ELASTIC WAVESNovember 2024March 2025Allow410NoNo
18933680LIDAR Sensor System Including Particular Optic DesignOctober 2024June 2025Allow710YesNo
18914028LIDAR AND MOBILE DEVICEOctober 2024March 2025Allow510NoNo
18905629PHOTONIC CHIP MODULE, LIDAR AND MOVABLE DEVICEOctober 2024December 2024Allow200NoNo
18884949METHODS AND APPARATUS FOR ARRAY BASED LIDAR SYSTEMS WITH REDUCED INTERFERENCESeptember 2024January 2025Allow510NoNo
18827854VECTORIAL ROTATION MEASUREMENT METHOD AND DEVICE BASED ON MULTI-CORE FIBERSeptember 2024November 2024Allow200NoNo
18814777METHOD FOR SURVEYING WITH A WIRELESS SEISMIC NETWORKAugust 2024November 2024Allow210NoNo
18814757WIRELESS SEISMIC SURVEY SYSTEMAugust 2024December 2024Allow410NoNo
18814737SYSTEM AND PROGRAM INSTRUCTIONS FOR SEISMIC SURVEYAugust 2024November 2024Allow210NoNo
18809262METHOD AND SYSTEM FOR VEHICULAR LIDAR AND COMMUNICATION UTILIZING A VEHICLE HEAD LIGHT AND/OR TAILLIGHT AND COMMUNICATING WITH VEHICLE SUBSYSTEMSAugust 2024October 2024Allow200YesNo
18808134LIDAR-CAMERA ONLINE CALIBRATION METHOD AND SYSTEM BASED ON REFLECTANCE MAPAugust 2024March 2025Allow720NoNo
18805245Exclusive Delivery of Content Within Geographic AreasAugust 2024May 2025Allow920NoNo
18805373METHOD AND SYSTEM FOR ACOUSTIC INDOOR POSITIONING BASED ON CDMAAugust 2024February 2025Allow610NoNo
18801597LIDAR DEVICE AND RANGING ADJUSTMENT METHODAugust 2024March 2025Allow710NoNo
18783026METHODS AND APPARATUS FOR ARRAY BASED LIDAR SYSTEMS WITH REDUCED INTERFERENCEJuly 2024January 2025Allow610NoNo
18779023METHOD AND SYSTEM FOR VEHICULAR LIDAR AND COMMUNICATION UTILIZING A VEHICLE HEAD LIGHT AND/OR TAILLIGHT AND LOAD BALANCING BETWEEN LIGHT OR OPTICAL COMMUNICATIONS AND RADIOFREQUENCY COMMUNICATIONSJuly 2024October 2024Allow200NoNo
18778879IDENTIFICATION METHOD OF SEABED WEAK ECHOES BY AIRBORNE LIDAR BATHYMETRY AND SYSTEM THEREOFJuly 2024January 2025Allow610NoNo
18771899FREQUENCY PAIRING FOR DEVICE SYNCHRONIZATIONJuly 2024February 2025Allow700NoNo
18765295Microwave Motion Detection System and Lighting ApplicationsJuly 2024December 2024Allow510YesNo
18760695METHOD FOR AMPLIFYING AN OPTICAL SEED BEAMJuly 2024June 2025Allow1200NoNo
18759024OPTICAL TRANSCEIVING MODULE AND LASER RADARJune 2024December 2024Allow510NoNo
18756375SYSTEM, DEVICE AND METHOD FOR MOBILE DEVICE ENVIRONMENT SENSING AND USER FEEDBACKJune 2024May 2025Allow1110NoNo
18723888INTERNAL SOLITARY WAVE (ISW) EARLY WARNING METHOD FOR OFFSHORE PLATFORM BASED ON BAROCLINIC MODEJune 2024October 2024Allow300NoNo
18752502TOTAL STATION WITH GNSS DEVICEJune 2024June 2025Allow1210NoNo
18743522SONAR SYSTEM WITH ADJUSTED BEAMJune 2024March 2025Allow910NoNo
18740270Methods and Apparatus to Improve Detection of Audio SignaturesJune 2024February 2025Allow910NoNo
18731840DYNAMIC POWER REDUCTION TECHNIQUE FOR ULTRASOUND SYSTEMSJune 2024January 2025Allow800NoNo
18679751METHOD AND SYSTEM FOR SIMULTANEOUS DETECTION OF SIGNED DOPPLER SHIFTS AND RANGE MEASUREMENTSMay 2024October 2024Allow510NoNo
18675797ADAPTIVE CODING FOR LIDAR SYSTEMSMay 2024August 2024Allow200NoNo
18674783METHOD FOR DETECTING STRUCTURAL ABNORMAL AREA OF COAL AND ROCK MASSMay 2024August 2024Allow300NoNo
18662246TECHNIQUES TO USE POWER SPECTRUM DENSITY IN COHERENT LIDAR SYSTEMSMay 2024February 2025Allow910NoNo
18657328OPTICAL DEVICE AND PHOTODETECTION SYSTEMMay 2024March 2025Allow1010NoNo
18656820POSITION DETERMINATION SYSTEM HAVING A DECONVOLUTION DECODERMay 2024June 2025Allow1310NoNo
18656438RADAR APPARATUSMay 2024March 2025Allow1010NoNo
18656280TECHNIQUES FOR FMCW LIDAR SYSTEM DESCAN COMPENSATIONMay 2024June 2025Allow1300NoNo
18654884NOVEL METHOD FOR ESTIMATING WATER SATURATION IN GAS RESERVOIRS USING ACOUSTIC LOG P-WAVE AND S-WAVE VELOCITESMay 2024October 2024Allow510NoNo
18652664SAME-PATH AND SYNCHRONOUS DETECTION SYSTEM AND METHOD FOR ATMOSPHERE DATAMay 2024July 2024Allow200NoNo
18649885IMAGING DEVICES WITH SELECTIVELY ALTERABLE CHARACTERISTICSApril 2024May 2025Allow1210NoNo
18644292ANCHOR MONITORApril 2024February 2025Allow1010NoNo
18643540METHOD FOR FREQUENCY IDENTIFICATIONApril 2024June 2024Allow200NoNo
18641933Computer System for Event Detection of Passive Seismic DataApril 2024August 2024Allow400NoNo
18641950Apparatus with Circuitry for Seismic Data DetectionApril 2024July 2024Allow300NoNo
18641972Apparatus and System for Identifying Seismic FeaturesApril 2024August 2024Allow400NoNo
18641011Autonomous Vehicle Including LIDAR Sensor System Having Improved Photonics InterfaceApril 2024September 2024Allow510NoNo
18640205SYSTEMS, METHODS, AND COMPUTER-READABLE MEDIA OF AUTOMATIC NETWORK SLICING OF UNDERWATER ACOUSTIC COMMUNICATION SYSTEM RESOURCESApril 2024April 2025Allow1210NoNo
18639643ROTATING COMPACT LIGHT RANGING SYSTEMApril 2024January 2025Allow900NoNo
18636214LASER RANGING METHOD, DEVICE, AND LIDARApril 2024February 2025Allow1030NoNo
18631673SYSTEMS, DEVICES AND METHODS FOR MOUNTING A TRANSDUCERApril 2024June 2025Allow1421YesNo
18697947METHOD OF OPTIMIZING SEISMIC ACQUISITIONApril 2024August 2024Allow500NoNo
18624247LIDAR SYSTEM WITH VARIABLE RESOLUTION MULTI-BEAM SCANNINGApril 2024March 2025Allow1210NoNo
18624596METHOD AND SYSTEM FOR PROCESSING BEAMFORMED DATAApril 2024February 2025Allow1010NoNo
18617493Systems and Methods for Multi-Unit Collaboration for Noninvasive Detection of Concealed Impermissible ObjectsMarch 2024June 2025Abandon1420YesNo
18617209LIGHT-RECEIVING DEVICE AND LIDARMarch 2024April 2025Allow1210NoNo
18616886HIGH-ACCURACY, FAST, AND PHASE-BASED LASER RANGING METHODMarch 2024July 2024Allow300NoNo
18608843REMOTE MEASUREMENT OF SHALLOW DEPTHS IN SEMI-TRANSPARENT MEDIAMarch 2024March 2025Allow1200NoNo
18607365HIGH-PRECISON MODELING METHOD AND SYSTEM OF THREE-DIMENSIONAL VELOCITY FIELD FOR PRECISE NAVIGATION OF DEEP OIL AND GASMarch 2024September 2024Allow620NoNo
18606397SEISMIC SENSOR ASSEMBLY OVERVOLTAGE PROTECTION CIRCUITRYMarch 2024February 2025Allow1100YesNo
18603059BULK ACOUSTIC WAVE RESONATORS WITH PATTERNED MASS LOADING LAYERSMarch 2024December 2024Allow900NoNo
18602874SYSTEM AND METHOD FOR ACOUSTIC IMAGING WITH AN ACCUMULATED-TIME VIEWMarch 2024December 2024Allow900NoNo
18599549SYSTEM AND METHOD FOR ENABLING DETERMINATION OF A POSITION OF A RECEIVER WITHIN A SPACEMarch 2024June 2025Allow1610NoNo
18599172Freely-combinable multifunctional ocean-bottom seismic detection deviceMarch 2024May 2024Allow300NoNo
18596256METHOD AND SYSTEM FOR VEHICULAR LIDAR AND COMMUNICATION UTILIZING A VEHICLE HEAD LIGHT AND/OR TAILLIGHT AND COMMUNICATING WITH VEHICLE SUBSYSTEMSMarch 2024June 2024Allow410NoNo
18595114SYSTEMS AND METHODS FOR EFFICIENT MULTI-RETURN LIGHT DETECTORSMarch 2024June 2025Allow1610YesNo
18590470POLARIZATION SENSITIVE LIDAR SYSTEMFebruary 2024March 2025Allow1310NoNo
18588466Transmitting Device For Use in Location Determination SystemsFebruary 2024March 2025Allow1310NoNo
18438995OPTIMIZED POSITION INFORMATION ASSISTED BEAMFORMINGFebruary 2024November 2024Allow900NoNo
18438043METHODS AND SYSTEMS FOR DETECTING OBSTRUCTIONS ON A SENSOR HOUSINGFebruary 2024May 2025Allow1510YesNo
18436425UPDATING CONTOUR MAPS FOR BODIES OF WATERFebruary 2024April 2025Allow1410NoNo
18681131METHOD AND DEVICE FOR DETECTING A DECALIBRATION OF A SENSOR FOR CAPTURING THE SURROUNDINGS OF A VEHICLEFebruary 2024June 2024Allow500NoNo
18429736MULTIPLEXED PHASED ARRAY MULTIBEAM SONARFebruary 2024April 2025Allow1420NoNo
18429644Limitation of Noise on Light Detectors using an ApertureFebruary 2024January 2025Allow1110NoNo
18427669ANTENNA, MANUFACTURING METHOD OF THE SAME AND ANTENNA SYSTEMJanuary 2024May 2025Allow1610NoNo
18419918LASER DETECTION METHOD FOR PORT MACHINERY EQUIPMENTJanuary 2024August 2024Allow710NoNo
18412700Light Detection and Ranging (LIDAR) Device with an Off-Axis ReceiverJanuary 2024February 2025Allow1310YesNo
18412820Use of Extended Detection Periods for Range Aliasing Detection and Mitigation in a Light Detection and Ranging (LIDAR) SystemJanuary 2024November 2024Allow1010NoNo
18412670Systems and Methods for Integrating Spatial Audio into Point CloudsJanuary 2024November 2024Allow1010NoNo
18412244LIDAR DATA AND STRUCTURAL MODELING BASED ELEVATION DETERMINATIONJanuary 2024December 2024Allow1110YesNo
18412119Silicon Photonics Device for LIDAR Sensor and Method for FabricationJanuary 2024February 2025Allow1310NoNo
18399759INTERNAL PEEPING DETECTION-WHILE-DRILLING SYSTEM AND METHOD FOR DEEP GOAF OF MINING-DISTURBED STRATUMDecember 2023September 2024Allow801NoNo
18575779F-P SENSOR PROBE, ABSOLUTE DISTANCE MEASUREMENT DEVICE, AND ABSOLUTE DISTANCE MEASUREMENT METHODDecember 2023August 2024Allow810NoNo
18401295RANGING SYSTEMS OF A DUAL OPTICAL FREQUENCY COMB TIME-OF-FLIGHT MANNER BASED ON DISPERSIVE FOURIER TRANSFORMDecember 2023July 2024Allow700NoNo
18397539METHOD, SYSTEM AND APPARATUS FOR CORRECTING SATELLITE OBSERVATION DATADecember 2023February 2025Allow1410NoNo
18396629ULTRASONIC SENSOR AND METHOD OF MANUFACTURING THE SAMEDecember 2023November 2024Allow1110NoNo
18395727METHODS AND SYSTEMS FOR ACQUIRING SEISMIC DATA OF FOUR-COMPONENT OCEAN BOTTOM NODE (OBN)December 2023April 2024Allow300NoNo
18389875TRANS-IMPEDANCE AMPLIFIER FOR ULTRASOUND DEVICE AND RELATED APPARATUS AND METHODSDecember 2023October 2024Allow1010NoNo
18543785SPATIAL AND TEMPORAL ENCODING OF TRANSMISSION FOR FULL SYNTHETIC TRANSMIT APERTURE IMAGINGDecember 2023August 2024Allow800YesNo
18541285METHODS AND SYSTEMS FOR PREDICTING RISK OF EARLY-SCREEN-OUT IN NEAR-WELL ZONE BASED ON DISTRIBUTED FIBER ACOUSTIC SENSING (DAS)December 2023September 2024Allow910NoNo
18541058CALCULATION METHOD, STORAGE MEDIUM AND DEVICE FOR SEABED REFLECTION COEFFICIENT OF POINT SOURCE ELASTIC WAVEDecember 2023February 2024Allow200NoNo
18542340Receiving ApparatusDecember 2023October 2024Allow1110NoNo
18538718Switchable Coherent Pixel Array for Frequency Modulated Continuous Wave Light Detection and RangingDecember 2023February 2025Allow1400NoNo
18538168BOND LOG ANALYSIS APPARATUS AND SYSTEM AND METHOD FOR USE OF SAMEDecember 2023February 2025Abandon1420NoNo
18530259HYBRID SOLID-STATE LIDAR AND SCANNING METHOD THEREOFDecember 2023May 2024Allow610NoNo
18518411FREQUENCY MODULATED CONTINUOUS WAVE LIDAR AND AUTONOMOUS DRIVING DEVICENovember 2023May 2024Allow610NoNo
18563725Real Time Dynamic Satellite Positioning System And Positioning MethodNovember 2023May 2025Allow1830YesNo
18517431Chip Packaging in Light Detection and Ranging (LIDAR) Sensor SystemNovember 2023February 2025Allow1510YesNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for art-unit 3645.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
237
Examiner Affirmed
141
(59.5%)
Examiner Reversed
96
(40.5%)
Reversal Percentile
80.8%
Higher than average

What This Means

With a 40.5% reversal rate, the PTAB reverses the examiner's rejections in a meaningful percentage of cases. This reversal rate is in the top 25% across the USPTO, indicating that appeals are more successful here than in most other areas.

Strategic Value of Filing an Appeal

Total Appeal Filings
651
Allowed After Appeal Filing
243
(37.3%)
Not Allowed After Appeal Filing
408
(62.7%)
Filing Benefit Percentile
73.1%
Higher than average

Understanding Appeal Filing Strategy

Filing a Notice of Appeal can sometimes lead to allowance even before the appeal is fully briefed or decided by the PTAB. This occurs when the examiner or their supervisor reconsiders the rejection during the mandatory appeal conference (MPEP § 1207.01) after the appeal is filed.

In this dataset, 37.3% of applications that filed an appeal were subsequently allowed. This appeal filing benefit rate is above the USPTO average, suggesting that filing an appeal can be an effective strategy for prompting reconsideration.

Strategic Recommendations

✓ Appeals to PTAB show good success rates. If you have a strong case on the merits, consider fully prosecuting the appeal to a Board decision.

✓ Filing a Notice of Appeal is strategically valuable. The act of filing often prompts favorable reconsideration during the mandatory appeal conference.

Art Unit 3645 - Prosecution Statistics Summary

Executive Summary

Art Unit 3645 is part of Group 3640 in Technology Center 3600. This art unit has examined 13,531 patent applications in our dataset, with an overall allowance rate of 83.9%. Applications typically reach final disposition in approximately 32 months.

Comparative Analysis

Art Unit 3645's allowance rate of 83.9% places it in the 76% percentile among all USPTO art units. This art unit has a significantly higher allowance rate than most art units at the USPTO.

Prosecution Patterns

Applications in Art Unit 3645 receive an average of 1.48 office actions before reaching final disposition (in the 23% percentile). The median prosecution time is 32 months (in the 34% percentile).

Strategic Considerations

When prosecuting applications in this art unit, consider the following:

  • The art unit's allowance rate suggests a more favorable examination environment compared to the USPTO average.
  • With fewer office actions than average, plan for relatively streamlined prosecution.
  • The median prosecution time is longer than average and should be factored into your continuation and client communication strategies.
  • Review individual examiner statistics within this art unit to identify examiners with particularly favorable or challenging prosecution patterns.

Important Disclaimer

Not Legal Advice: The information provided in this report is for informational purposes only and does not constitute legal advice. You should consult with a qualified patent attorney or agent for advice specific to your situation.

No Guarantees: We do not provide any guarantees as to the accuracy, completeness, or timeliness of the statistics presented above. Patent prosecution statistics are derived from publicly available USPTO data and are subject to data quality limitations, processing errors, and changes in USPTO practices over time.

Limitation of Liability: Under no circumstances will IronCrow AI be liable for any outcome, decision, or action resulting from your reliance on the statistics, analysis, or recommendations presented in this report. Past prosecution patterns do not guarantee future results.

Use at Your Own Risk: While we strive to provide accurate and useful prosecution statistics, you should independently verify any information that is material to your prosecution strategy and use your professional judgment in all patent prosecution matters.